All ISEE Upper Level Math Resources
Example Questions
Example Question #11 : How To Find The Solution To An Equation
Julie sells cars. She has a monthly salary of $1000 and a commission of $500 for each car sold. How much money will she make this month if she sells 7 cars?
$8000
$4500
$1500
$3500
$7000
$4500
To find out how much Julie makes from selling the cars, we first multiply the 7 cars she sells by the $500 that she receives for each car. This gives us $3,500. We now add the $1,000 that she gets for her monthly salary for a total of $4,500.
Example Question #721 : Isee Upper Level (Grades 9 12) Mathematics Achievement
Consider the following system: and
. What is the sum of
and
?
9
3
-2
-1
1
1
We first need to line up the equations and solve for . If we add the equations together we get:
+
_______________
From this, we have . Now we plug
into either equation to find that
. Thus,
.
Example Question #722 : Isee Upper Level (Grades 9 12) Mathematics Achievement
;
Find the value of .
When plugging in the values for and
, we find that the answer is
:
Example Question #21 : Algebraic Concepts
A class has 25 students. If 60% of them are boys, how many students are girls?
10
8
9
20
15
10
We know that 40% of the class are girls because 60% are boys. To express 40% as a fraction of the 25 total students, we set up a proportion to find the number of girls in the class.
When solving for , we find that there are 10 girls in the class.
Example Question #2 : Word Problems
Machine A can produce 4 books in 2 days. Machine B can produce 20 books in 4 days. How many books can machines A and B, working together, produce in 40 days?
200
280
120
10
960
280
Through simplification, we can see that machine A produces 2 books a day and that machine B produces 5 books a day. If we multily each by 40 days and add them together, we find that together they can produce 280 books in 40 days:
Example Question #21 : Problem Solving
Adam has 3 siblings. When his mother bakes a cake, each of the 4 children is given ¼ of the cake. Adam only finished 1/3 of his share of cake. If the original cake had 12 slices, how many slices did Adam eat?
4
1
3
2
6
1
Each of the children gets 1/4 of the cake. Taking 1/4 of 12 shows that each child gets 3 slices. If Adam finishes 1/3 of his share, then he has eaten one out of the 3 slices.
Example Question #22 : Algebraic Concepts
Solve for :
7
63
42
18
21
63
We first add 14 to both sides to get by itself. This leaves us with
. Divide both sides by
to see that the answer is
Example Question #23 : Algebraic Concepts
Solve for :
23
5
15
69
7
69
Subtract 22 from both sides, then multiply by 3 to solve for :
Example Question #24 : Algebraic Concepts
What percent of 60 is 45?
25%
75%
80%
45%
50%
75%
We need to set up a proportion to find out what percent of 60 is 45. When solving the proportion, we find that the answer is 75%.
Example Question #25 : Algebraic Concepts
Solve the set of equations
Solve the second equation for y:
Substitute into the first equation:
Substitute into the first equation:
Solve for y:
All ISEE Upper Level Math Resources
